Improvement in alkali-cans



UNITED STATESy PATENT CFFICE.

CHRISTIAN BARRY, OF PHILADELPHIA, PENNSYLVANIA.

IM PRovEM-ENT |N ALKALl-CANS.

Specification forming part of Letters Patent No. 82,914, dated October 13, 1868.

To all 'whom it may concern:

Be it known that I, GHRIsTIAN BARRY, of Philadelphia, Pennsylvania, have invented an Improvement in Alkali-Cans and I do hereby declare the following to be a full, clear, and exact description of the same.

My invention consists of an alkali-can in which clay is interposed between the covers and the body, substantially as described hereinafter, so that a perfectly tight joint, capable of resisting the action of the caustic alkali, may be produced.

I will now proceed to describe the mode of carrying my invention into effect, reference being had to the accompanying drawing, which forms a part of this specification, and in which- Figure l is a vertical section of a portion of the body of an alkali-can, and one end detached from the same; Fig. 2, a section of one end of the can applied to the body preparatory to compressing the joint 5 Fig. 3, the

same after the joint has been compressed 5 and Fig. 4, a plan view of one of theends or covers of the can inverted. j

' .A represents the part of the body of the can, which is slightly flared at the edge a, where it fits in the groove b formed in the cover near the edge of the same, as in alkali-cans of the ordinary construction.

The searching character of caustic alkali is such that it is a difficult matter to form a per- With a small brush I apply the clay to the groove b of the cover B, taking care that athin coating of the clayis spread entirely round the groove. Immediately after this application of the clay I adj ust the cover to the end of the body, as seen in Fig. 2, and at once compress the fold of the cover to the edge of the body by suitable appliances, when a perfectly tight joint, impenetrable by the caustic alkali, is formed.

I claim as my invention and desire to secure by Letters Patent- An alkali-can in which clay is used for producing a tight joint, substantially in the manner described.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

cHRIsTIAN BARRY.y

' Witnesses E. H. BAILEY, HARRY SMITH. 

